About WWV and WWVH

WWV and WWVH are more than just sources of time signals. These stations also
provide frequency standards used by Amateur Radio Operators,
SWLs and others;
they are a good indicator of HF propagation conditions; and
they are a source of valuable recorded announcements
of general interest on an hourly schedule—including
the GPS satellite constellation status and severe oceanic weather
warnings—on HF bands from 2.5–20 Mhz.

NIST radio station WWV broadcasts time and frequency information 24
hours per day, 7 days per week to millions of listeners worldwide. WWV
is located near Fort Collins, Colorado, about 100 kilometers north of
Denver. The broadcast information includes time announcements, standard
time intervals, standard frequencies, UT1 time corrections, a BCD time
code, geophysical alerts and marine storm warnings. 2

NIST radio station WWVH broadcasts time and frequency information 24
hours per day, 7 days per week to listeners worldwide. The station is
located on the Island of Kauai, Hawaii on a 12 hectare (30 acre) site
near Kekaha at Kokole Point. The information broadcast by WWVH includes
time announcements, standard time intervals, standard frequencies, UT1
time corrections, a BCD time code, geophysical alerts, marine storm
warnings, and Global Positioning System (GPS) status reports. 3